Abstract
Suppose that k is a field of characteristic p and that G is a finite group having p-rank at least three. Given a regular sequence of length 2 in H*(G, k), we show how to construct an infinitely generated module whose support variety is strictly smaller than the small support of its cohomology.
| Original language | English |
|---|---|
| Pages (from-to) | 122-125 |
| Number of pages | 4 |
| Journal | Archiv der Mathematik |
| Volume | 91 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2008 |
Keywords
- infinitely generated modules
- groups algebras
- support varieties
- idempotent modules
- complexity
- category